SSM集成:spring+mybatis+springmvc集成

SSM集成:spring+mybatis+springmvc集成

• ​​1.准备的jar包​​
• ​​2.配置web.xml文件​​
• ​​3.配置log4j.properties​​
• ​​4.配置ojdbc.properties​​
• ​​5.配置spring相关​​
• ​​6.配置mybatis.xml​​
• ​​7.配置springmvc.xml​​
• ​​8.导入js类库​​
• ​​9.编写Java文件​​
• ​​10.发布测试(暂时只测试springmvc)​​
• ​​11.总结​​

1.准备的jar包

注意：实际使用时，必须放在WEB-INF/llib文件夹下，不能用其他文件夹包起来，否则不会自动加载jar

2.配置web.xml文件

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:context="http://www.springframework.org/schema/context"
  xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
  http://java.sun.com/xml/ns/javaee/web-app.xsd
  http://www.springframework.org/schema/context
  http://www.springframework.org/schema/context/spring-context.xsd
  ">
  <!-- 配置加载spring 文件 -->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>WEB-INF/classes/resource/spring-*.xml</param-value>
  </context-param>
  <listener>
    <listener-class>
      org.springframework.web.context.ContextLoaderListener
    </listener-class>
  </listener>
  <servlet>
    <!-- 配置前端过滤器 -->
    <servlet-name>springmvc</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!-- 初始化时加载配置文件 -->
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>WEB-INF/classes/resource/springmvc.xml</param-value>
    </init-param>
    <!-- 容器启动时加载servlet -->
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>springmvc</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
</web-app>

注意：
之前在springMVC中配置的拦截器必须放在web,xml中，同时上述一般都需要配置

3.配置log4j.properties

log4j.properties

# Global logging configuration
log4j.rootLogger=INFO, stdout
# MyBatis logging configuration...
log4j.logger=INFO
# Console output...
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%5p [%t] - %m%n

4.配置ojdbc.properties

ojdbc,properties

ojdbc.driver=oracle.jdbc.driver.OracleDriver
ojdbc.url=jdbc:oracle:thin:@127.0.0.1:1521:oracle
ojdbc.username=study
ojdbc.password=study
#最大连接数
ojdbc.maxTotal=30
#最大空闲连接数
ojdbc.maxIdle=10
#初始化连接数
ojdbc.initialSize=5

5.配置spring相关

spring-aop.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:aop="http://www.springframework.org/schema/aop"
  xmlns:context="http://www.springframework.org/schema/context"
  xsi:schemaLocation="http://www.springframework.org/schema/beans 
  http://www.springframework.org/schema/beans/spring-beans.xsd
  http://www.springframework.org/schema/aop
  http://www.springframework.org/schema/aop/spring-aop.xsd
  http://www.springframework.org/schema/context
  http://www.springframework.org/schema/context/spring-context.xsd">
  <!-- 指定需要扫描的包 -->
  <context:component-scan base-package="domain,daoImpl,serviceImpl,controller">
  </context:component-scan>
  <!-- 启动基于注解的声明式AspectJ支持 -->
  <aop:aspectj-autoproxy></aop:aspectj-autoproxy>
</beans>

spring-beanx.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:aop="http://www.springframework.org/schema/aop"
  xmlns:context="http://www.springframework.org/schema/context"
  xsi:schemaLocation="http://www.springframework.org/schema/beans 
  http://www.springframework.org/schema/beans/spring-beans.xsd
  http://www.springframework.org/schema/aop
  http://www.springframework.org/schema/aop/spring-aop.xsd
  http://www.springframework.org/schema/context
  http://www.springframework.org/schema/context/spring-context.xsd">
  <!-- 开启注解注入的装配方式 -->
  <context:annotation-config></context:annotation-config>
</beans>

spring-dataBase.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:context="http://www.springframework.org/schema/context"
  xsi:schemaLocation="http://www.springframework.org/schema/beans 
  http://www.springframework.org/schema/beans/spring-beans.xsd
  http://www.springframework.org/schema/context
  http://www.springframework.org/schema/context/spring-context.xsd">
  <!--  加载配置文件 -->
  <context:property-placeholder location="classpath:properties/ojdbc.properties"/>
  <!-- 配置数据源 -->
  <bean id="dataSource" 
    class="org.apache.commons.dbcp2.BasicDataSource">
    <!-- 数据库驱动 -->
    <property name="driverClassName">
      <value>${ojdbc.driver}</value>
    </property>
    <!-- 连接数据库的url -->
    <property name="url">
      <value>${ojdbc.url}</value>
    </property>
    <property name="username">
      <value>${ojdbc.username}</value>
    </property>
    <property name="password">
      <value>${ojdbc.password}</value>
    </property>
    <property name="maxTotal">
      <value>${ojdbc.maxTotal}</value>
    </property>
    <property name="maxIdle">
      <value>${ojdbc.maxIdle}</value>
    </property>
    <property name="initialSize">
      <value>${ojdbc.initialSize}</value>
    </property>
  </bean>
  <!-- 配置MyBatis工厂 -->
  <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
    <property name="dataSource" ref="dataSource"></property>
    <property name="configLocation">
      <value>classpath:resource/mybatis.xml</value>
    </property>
  </bean>
  <!-- 配置mapper扫描器 -->
  <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
    <property name="basePackage">
      <value>dao</value>
    </property>
  </bean>
  <!-- 扫描service -->
  <context:component-scan base-package="service"></context:component-scan>
</beans>

spring-transaction.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:aop="http://www.springframework.org/schema/aop"
  xmlns:context="http://www.springframework.org/schema/context"
  xmlns:tx="http://www.springframework.org/schema/tx"
  xsi:schemaLocation="http://www.springframework.org/schema/beans 
  http://www.springframework.org/schema/beans/spring-beans.xsd
  http://www.springframework.org/schema/aop
  http://www.springframework.org/schema/aop/spring-aop.xsd
  http://www.springframework.org/schema/context
  http://www.springframework.org/schema/context/spring-context.xsd
  http://www.springframework.org/schema/tx
  http://www.springframework.org/schema/tx/spring-tx.xsd
  ">
  <!-- 注册事物管理器，依赖于数据源的一个bean -->
  <bean id="transactionManager"
    class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    <property name="dataSource" ref="dataSource"></property>
  </bean>
  <!-- 开启注解扫描 -->
  <tx:annotation-driven transaction-manager="transactionManager" />
  <!-- 编写通知 -->
  <tx:advice id="txAdvice" transaction-manager="transactionManager">
    <tx:attributes >
      <tx:method name="*" propagation="REQUIRED" isolation="DEFAULT" read-only="false"/>      
    </tx:attributes>
  </tx:advice>
</beans>

注意：spring配置与mybatis以及springmvc的配置文件需要能区别开

6.配置mybatis.xml

mybatis.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
  PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
  "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
  <settings>
    <!-- 延迟加载全局 -->
    <setting name="lazyLoadingEnabled" value="true"/>
    <!-- 关联对象属性的延迟加载 -->
    <setting name="aggressiveLazyLoading" value="false"/>
  </settings>
  <!-- 改变运行时行为 -->
  <typeAliases>
    <!-- 配置别名 -->
    <package name="domain"/>
  </typeAliases>
</configuration>

7.配置springmvc.xml

springmvc.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:context="http://www.springframework.org/schema/context"
  xmlns:mvc="http://www.springframework.org/schema/mvc"
  xsi:schemaLocation="http://www.springframework.org/schema/beans 
  http://www.springframework.org/schema/beans/spring-beans.xsd
  http://www.springframework.org/schema/context
  http://www.springframework.org/schema/context/spring-context.xsd
  http://www.springframework.org/schema/mvc
  http://www.springframework.org/schema/mvc/spring-mvc.xsd
  ">
  <!-- 指定需要扫描的包 -->
  <context:component-scan base-package="controller"></context:component-scan>
  <!-- 定义视图解析器 -->
  <bean id="viewResolver" 
    class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <!-- 设定前缀 -->
    <property name="prefix" value="/WEB-INF/jsp/"></property>
    <!-- 设定后缀 -->
    <property name="suffix" value=".jsp"></property>
  </bean>
  <!-- json的转换器注解模式 -->
  <mvc:annotation-driven></mvc:annotation-driven>
  <!-- 静态资源访问映射 -->
  <mvc:resources location="/WEB-INF/js/" mapping="/js/**"></mvc:resources>
  <!-- 文件上传解析器 -->
  <bean id="multipartResolver"
    class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
    <!-- 设置请求编码格式 -->
    <property name="defaultEncoding" value="utf-8"></property>
  </bean>
</beans>

8.导入js类库

9.编写Java文件

注意：

dao实现用注解注册bean时，不能指定bean的id，注解扫描会自动生成小写第一个字母的dao实现类名的bean

service同样不可指定。

10.发布测试(暂时只测试springmvc)

一般springmvc能通过浏览器访问，那么剩下的就很少会出现问题。

11.总结

ssm集成需要心细，配置文件出错会造成启动或者运行异常。
同时因为大量使用框架的类，造成出现问题后不易查找解决。
有时候出现异常并不是配置的问题，可能是旧的文件没有及时的刷新：clean工程，cleanTomcat,重新发布等等。
配置未生效：配置是否被覆盖?多个文件配置是否有先后顺序的关系？